From: Tim Deegan <Tim.Deegan@citrix.com>
To: weiming <zephyr.zhao@gmail.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Subject: Re: where is writable page table implemented?
Date: Mon, 24 Mar 2008 16:25:10 +0000 [thread overview]
Message-ID: <20080324162510.GD30315@york.uk.xensource.com> (raw)
In-Reply-To: <add59a3f0803240918m1f882115h7c2ba64e2ca2139a@mail.gmail.com>
At 12:18 -0400 on 24 Mar (1206361139), weiming wrote:
> Hi,
>
> I want to read the code about the implementation of writable page table. But
> I can't find it in the source codes.
xen/arch/x86/mm.c, the functions after the comment "Writable Pagetables"
(ptwr_*)
The guest is responsible for revoking write access to its own
pagetables, but that is checked by the recursive pagetable walk started
by the MMUEXT_PIN_* hypercall.
Cheers,
Tim.
--
Tim Deegan <Tim.Deegan@citrix.com>
Principal Software Engineer, Citrix Systems (R&D) Ltd.
[Company #02300071, SL9 0DZ, UK.]
next prev parent reply other threads:[~2008-03-24 16:25 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-24 16:18 where is writable page table implemented? weiming
2008-03-24 16:25 ` Tim Deegan [this message]
2008-03-24 18:26 ` weiming
2008-03-25 10:43 ` Tim Deegan
2008-03-30 23:43 ` weiming
2008-04-01 8:38 ` Tim Deegan
2008-04-01 15:37 ` weiming
2008-04-01 16:17 ` Tim Deegan
2008-03-25 16:30 ` Mark Williamson
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